Solomon schtylman



July 29, 1930, s, SCHULMAN Re. 17,754

MOP wRINGER Original Filed June 6, 1924 /37 E0 FHEfDA/AM Ass/@NEE i that the mop rag Ressued July 29, 1930 SOLOMON SCHULMAN,

PATENT OFFICE A' DECEASED, LATE OF NEWr YORK, N. Y., BY LEO FREEDMAN, .OF

LOS ANGELES, CALIFORNIA, ASSIGNEE MOP WRINGER Original No. 1,652,800, dated December 13, 1927, Serial No. 718,259, filed June 6, 1924.. .Applica-.tion` for reissue filed December The invention relates to appliances for squeezing a substantial proportion of the liquid from wet fabrics o r other liquid absorbing substances, and is concerned primarily with mop wringers, wash wringers and the like.

It is an object of the invention to provide a practical wringer of simple, durable, and inexpensive construction which shall eliminate the use of gearing or other rotating parts likely to become out of order.

Another object is to provide a wringer of the above type, the operation of which `shall be speedy, which shall require little or no effort to squeeze the mop or other fabric to a substantial degree of dryness without injury thereto or to the supportingv pail or bucket, and Which shall operate without splashing or likelihood of up-setting.

A desirable embodiment of the invention includes a drain cup perforated in its bottomV and sides, substantially in the mannerv of a sieve and rigidly fixed upon a pail while in use. Preferably the drain cup is of frustoconical form, so that the fabric is subjected to a wedging action when pressed toward the reduced bottom thereof, thus forcing out some of the water, the slope of the side walls and the depth of the drain cup being such or other fabric to be'wrung will not become jammed into the cup above the bottom, but pressure applied thereto will be exerted against the bottom and side wall of the drain cup, so that the drain apertures afford direct and easy escape of the water released adjacent each locality of pressure.

According to a preferred feature there is provided the drain cup Vwith a fulcrum or hooking element for coaction with a presser element between which andthe cup, the fabric an axis.

tive application of force,

is to be squeezed by force applied with sub-. stantial leverage through'an operating handle which compresses the fabric byV urging the presser elementk about said fulcrum as In the preferred embodiment, the parts are so proportioned that the handle element extends obliquely upward when the pressure is applied at the fulcrum, so that the user by resting thereon without any affirmaand without any 13, 192e.l serial No. 413,87e.

substantial movement of the handle, will apply a substantial pressure against the fabric through the presserl element for the purpose desired.

In the preferred application to mop wringers, the mop head is preferably provided at each end with an upstanding gripping or hooking edge for coaction with the fulcrum .element on the drain cup, so that the mop can be squeezed dry after application to the drain cup by pressing downward on the obliquely extending handle.

The drain cup is preferably provided with an integral flaring, generally oval rim and the anchoring or fulcruming aperturel is arranged at the end of the minimum diameter of the rim, at which the drain cup is preferably sustained on the supporting bucketv or pail. By this arrangement, the mop rag which would naturally be introduced into the drain cup with its width along thev length of the maximum diameter of the rim, would have to be turned through an angle of about 90 degrees, to effect a purchase at the fulcrum aperture prior to applying the relatively intense wringing pressure. This preliminaryY rotation brings about a removal of 'excess water and preliminary compacting of the rag to avoid splashing in the final wringing operation. i

According to another feature, the drain cup is provided with a supporting brace bar rigid therewith and tangent thereto at a point of the rim opposite the fulcrum, said brace bar extending substantially diametrically across the supporting bucketor pail so that the final pressure would be applied substan-` tially directly downward on the bucket or pail.

According to another feature of the invention, clamping members are employed for removably attaching edge of a pail or bucket in such a manne; that the pail will not be injured by repeated secure application of and. more especially in screw will not bind directly but will exert its clamping pressure a member of larger surface.

Another feature of the invention is which the clampin through the drain cup to the the clamping means against the pai ,v

they

This application is .a continuationin partk of applications, Serial No. 529,200, filed J an.`

14, 1922, and Serial No. 663,646,131@ Septeinfk ber 18, 1922, which havebeen abandoned in vi'ew'o'f thewiss'uance of'Patent No. 1,652,800 for the reissue of w ichy this application .has

been liled. f

In the` accompanying drawings in which is shown one of the various possibleembodiments of vthe several features ofthis invenfl tion.` n n Fig. `1 y'isa perspective view yof e la ypail with they drainicupapplied, thereto', ff

` Fig.u2.is ra fragmental sectional view on a larger scale, `talren along the line 2 2 of 3 illustrating a preferredmethod of use `and'showing the mop wringing posi-y tion, r n

Fig. Sis a fragmentary plan view of Fig. 1,

F 4 isa fragmentaryvertical sectional view through the mophead,

. Fig.` 5- is a sectional view taken along ther line 5-5 of Fig. 4, but ywith themop rag removed, and` v o y i f 6 is an elevation of the mop rag apart from the head andon a smaller' scale.y Similar reference characters refer to'similar parts throughout lthe several views ofy the drawings.l i

l `Referring now to the4 drawings, there is pail orlbuclret having theL usual of` conventional form and with .the preferred yform of drain cup applied thereto. The draincup comprises `preferably an integral cup-shaped stamping including a frusto-co'nical` side, 11 yand a base 12of substantial area.. The cuphas a multiplicity of contiguous smallfdrain apertures 13 through itsl bottom, and side wall substantially inthe mannerof`r a sieve.

rated drain ortion of the drain cu has a`fvolume somewhat greater Athan `that ofthe mop or otherjfabric to be wrung. i K

Tjhe drain cupisr provided with a Asubstantially imperforategiiaring ovoidal rim portion `14, thefilare or` slope of along themazrimum Adiameter being at a wider u angle p, than along the minimum diameter,

' .therivets 18 is` spaced '150L ying'rnembersl 1 5,

where the inner walls are nearly'vertical. I

For securing ythe Y drain cup to the pail, there is provided a pair ofcooperating clamp- 15 being riv- 16, the member eted to the exterior of the `drain cup. The lower portion 17 of the member 15 betweeny from thecup to lie surface of the pail, its length and carries flat'. againstr the inner i throughout a portion of f a beltlQrprojecting outward therefrom above the edge ofthe pail.`

The upper endy of memberl also entends outwardly andvhas a rectangular, slotk at to accommodate 4 the lower horizontal edge the pail'orfbuclet, ywhen in applied position, ,a spacer ywasher 26 is *interposed between t Preferably they perfol thereof, Ywhich straddle the bucket the rim wall nut 2st on the bolt 19 will urge the clamping i member 16Jinto clampingy position, the pail beingfclamped between members and 16,

Lthe latter member fulcruming in the aperture 20; Preferably the end of bolt 19 is upset as at 19 to preventescape of wing nut 24er of clamping plate'16. `Ina`smu`ch both of the members 15 and 16 are formed of flat stock, repeated clamping of thewringer E, attachment to the pail will not dentjor weaken or otherwisein-jure'the sides of the pail.'y

`Preferably a horizontal brace bar 25 is riveted'tothe drain cup tangent to the side thereof, at a point diametrically opposite the clamping member 15. In order to insure dis position of the bar in a vertical plane, with its resting on ythe top of lower rivet 27 and the bar( rBoth thebar 25 and the clamping member l flare secured te the drain cup below the rim,

preferably by yriveting through drain openings that would otherwise serve as drain aperturesso that the cup is spaced well above the bottom ofapail to whichit is applied. The ends ef the cross brace 25 `are obliqueat their upper edges, as indicated at 28and are kdisposed respectively on oppositesides of the anchores 29 for the bail 30` of the bucket. The ends 28 of the bar"25thus afford sutlicient clearance for the bail normallyl rest at small inclination above the rim of the'pail, (Fig'.A 1) wherebyvit, may

bev rf-iadilvv grasped when thepail isto be carried in thercourse of use. v`lreferably theA ends ofcross b'race:25 have integral down-1 ward lugs, 2,5` at thejends of: the lower edge l or pail and prevent the end offthenbrace from shift-rv inglbeyondthe rim of a large pail, when `wfinging pressure is applied,` assuming that the clamp is. not rigidlysecured to the pail.`

To facilitate lifting of a mop from the pail into the drain cup,

the inner "side of the rim is formed with,` a, relatively ydeep cutawaypoi1` tion ,31, which permits theinop to Ibe inserted t ,inA the cup `withoutlifting it to anT great" dis- L cup isltilted alittle from thevertical and the lower edge of the cup `ma'yLjust contact the inner` surface of the members. `The drain apertures nearest the l pail f are thus not sealed by thepail wall,`

30, so that the latter will Y,

pail belowthe clamping and will drain as effectively as the other apertures.

' The mop wringer disclosed comprises a metallic mop head having a spike 32 for application to the usual handle The head has an elongated cross-piece 34 of channel form, shown arcuate in cross-section, having integral hook conformations '35 extending downward from the ends thereof. The complementary clamp member for the head comprises a relatively thin clamping strip 36 fitting into the channel head piece 34 to be straddled thereby, and extending substantially from one end to the other thereof, said y strip having its ends 37 turned at right angles and lying closely adjacent the inner faces of the hooks 35. A pointed screw 38 extending through a central aperture 36 in the strip 36, works in a socket 39 in the spike and may *abe manually turned by the wing nut head 1. ber 36 offers a relatively7 long clamping surface extending from end to end of the mop head, since. the turned up ends 37 occupy very little space. The head would, therefore, be only little wider than the mop rag.

im, The securing device 38, 4() is normally concealed by the mop rag 50 when the latter is in applied position. The securing device is too close to the head to interfere in any way with the mopping operation. There are no projecting screws or fastenings above the mop head about which the mop strands are likely to become twisted or tangled and the angular brace bars 41 act as a guard yoke to prevent the strands from winding about the handle.

The rim of the drain cup is preferably pro vided with fulcrum means, such as rectangular fulcruming apertures 42 at one side of its minimum diameter and preferably directly above the clamping member 16, a plurality of said apertures being provided at different elevations for accommodating mop rags of different volumes.

The walls of the fulcruming apertures which are located near the peripheral margin of the cup rim may be strengthened in convenient manner. There is shown a relatively heavy reinforcing plate 43 secured by any suitable means upon the outer face of the rim for this purpose. The reinforcing plate is 'i formed with apertures 44 registering with the two upper fulcruming apertures 42 in the rim. The lower edge of the plate aligns with the upper wall of the lowermost opening to. strengthen the same. The wringer attachment is adapted for use with all classes ldepending on the size of the mop rag.

of buckets and tubs. For purposes of more firmly securing the same upon a relatively thick wooden bucket, having no. bead for cooperation with the clamping member 16, may be provided this member with burrs or teeth 16 on its inner face.

In Fig. 6 is shown a mop rag particuluarly suited to the mop'head construction above described. This mop rag instead of having the usual central encircling band securing the strands of the mop, is provided with a pair of such bands 51 secured preferablyby stitching, one at each side of the center so as not. to interfere with the use of the screw 38.

The strands between the bands become relathe wringing operation, the rag would naturally be introduced into the drain cup with its greatest width along the greatest diameter of the rim, whereupon the handle 33 would be rotated about its axis through about 9() degrees to bring one of the hook ends 35 of the mop head into alignment and into engagement with one of the fulcruming aperturer` 412.

ey mop is of such size relative to the volume of the drain cup that the mop head would naturally be inclined slightly downward from the fulcruming aperture and the mop handle at right angles to the mop head, would be inclined toward the central axis of the pail, as shown. Thereupon the porter or maid need merely grip the handle andr rest the weight of the body thereon to force the handle downward without need for exerting any affirmative or fatiguing pull or push. By reason of the frusto-conical form of the drain cup, the fabric is thus subjected to a wedging and squeezing action. Moreover, the downward force indicated by the arrow a will resolve itself intotwo components, indicated by arrows b and c. The component Z along the handle will exert a direct downward Vforce against the mop, the other component c is applied to the force end of a lever, the fulcrum of which is at 35, and the work of which is the resistance of the mop rag 50 below the head, so that by reason of the relatively great length of the handle, compared to the much shorter length between the fulcrum and the po-int of application of the work, a substantial pressure will be added to the direct force applied "P" to the mop rag by component b, to press the4 mop rag with substantial force against the bottom and sides of the drain cup for removing substantially all of the water from the rag, leaving it damp ratherthan wet.

a In this operation, it will be seen that thedownward force is applieddirectly above the lbottom of thepaihand there is nosubstantial rotary component tendingto upset the pail, .as there might be` if the mop handle were moved through a substantial range of rotary displacement about the fulcrum in the wringing operation.y`r yIt will also be seen that thev substantialstrain appliedin this opera-- tion isftaken by the brace bar 25, applying a compressive force directly upon the pail or bucket, which itis, of course, well able to re-v f sist, wholly avoiding normal pressure against thelateral surface that would be lilrely to dis# tort, buckle or ,destroy the pail.`

Furthermore, the engagement of the lower edgev of-thecup with the inner face of the bucket below thefulcrum serves to effectivey 1y brace the cup against any transverse.

strains incident to a mop wringing operation,

even though the nut 24 of theclamping members l5, 16, be not completely tightened.

In the lever actionby which the rag'is squeezed dry, it will beA seen that the drain cup will be maintained in position even should 'thefclamp l-l'be not completely tightened,tsince the thickened bead IOFwill prevent the clamp. from being `lifted above v`the'rim ofthe pail.

1 It `will be seen that in the preliminary rotary operation to bring the mophead hook into alignmenty with the `fulcruming anchor of the drain cup, the mop rag is preliminarily i twisted, to preliminarily compact the same and to force out lexcess water, so that thet pressure applied in" the iinal leverage operation is distributed throughout the mass of the compacted rag, the `water escaping from all portions thereof rather than from a restrictedfportion thereof only. Moreover, this preliminary vtwisting operation v eliminates the possibilitye offsplashing `which might be encountered if high `pressure werersuddenly appliedrto a verywetrag'. y

It might be noted'that while the draincup is supported well above the mouth rofthe bucketto provide'` an ample height ofwater in the pail below the bottom of the drain cup and `that some'of the drain aperturesare above the bucket rim,`there is little danger of splashing water on the floor because of the -recess 3l at the inner side ofthe rim andY the fact that the pressure is applied to the kmop only aftermuch of the water has` been pressed out in thetwisting operation incident to adjusting the mop head at the fulcr um slot.. y

VThe drain cup,.it will be seen, provides av continuous smooth surface without sharp protuberances of any, sort into the interior thereof, so thatthere is nothing likely yto themop rag. i i u u yThe invention is applicable not' only to the; 651

catch', bind, jam `or tend to tear or destroy mop ragwas set forth,` but caribe used for wringing the water from clothing and other fabricslbefore hanging the same to dry. In this application, the clothing would iirst bey deposited-intothe drain'cup and rpressure `would be applied by means of a presser lele- Y ment, such as the element 33 andthe leverage principle may be" applied, substantially asy set forth inthe operation above, or ythe ,clothring fabricvmay be clamped in lieuv of a mop rag .in a construction similar tothe mop head shown and the operation may proceed as set forth above. y

It will be seen that the operation is ea-` Vpeditious and requires little orfno eifort, yet

eiects removal of substantially all of the water without injury tov the l' fabric.

It will bethus seen that there is herein described apparatus in which the several features of this invention are embodied, and which apparatus lin its actionl attains the various objects of the invention andis well snited to meet the requirements of practical use.- a i f f Asniany changes could be made `in the above construction and many apparently widely diilierent embodiments of this invention could be made withoutdeparting from` the scope thereof, it is intended that all mat ter contained in the above description .or shown in the accompanying drawings shall be interpreted as `illustrative andnot ina limiting sense.- i A y Having thus described the invention, whaty isclaimer ras new and desired to kbe secured by Letters-Patent of the United States is z-fl. A wringer. comprising a drain cup having an oval rim with yfulcrum means at one end of the minimum diameter of said rim, in combination with a presser member adapted to have a mop mechanically attached thereto, said presser member being of a size to reacily turn within the oval rim and having a hook portion at one endthereof for engagement ofthe fulcrum, whereby in oper# ation, the presser member would be inserted into the cup along the maximumkdiameter thereof, and turned through a right angle to engagethe fulcrum.' i

As. an article of manufacture, a mop wringer includinga unitary frusto-conic'al drain cup, perforated both at the bottom and` at the side thereof and having a` ilared ovoidal rim portion, `saidvrim havingfulcrum means at its nari-cwest width.` i y n 3. mop' wringing attachment for pails, buckets,and the like, i conical drain cupperforated both at the bottom and at the sides thereof, having a yflared, ovoidal rim sectioinand means fork attaching,y the cup tov theedgeof a pail with" therim disposed above thepail, saidk rimr having aV relatively deep cut away portionfat th'e'wsidel i opposite said attachingy means and yhaving fulcrum means at the side opposite' said-cuty awayPortion.' i n f comprisinga frustro- 4. A mop wringer attachment for buckets and the like, including a drain cup, a relatively fixed clamping member carried by the drain cup and engageable with the inner face of a bucket, a bolt carried by said member and extending outwardly over the edge of the bucket, a nut on said bolt, a relatively movable clamping member guided on the bolt to be urged inward into engagement with the exterior of the bucket by tightening of the bolt nut, said movable clamping member having an inwardly curved lower end to engage the bucket below the rim or rim bead thereof.

5. A mop wringer attachment for buckets and the like, including a drain cup, a relatively fixed clamping member carried by the drain cup and engageable with the inner face of a bucket, a bolt carried by said member and extending outward over the edge of a bucket, a nut on said bolt, a relatively movable clamping member guided on the bolt to be urged inward into engagement with the exterior of a bucket by tightening the bolt nut, said fixed clamping member including an outwardly projecting apertured upper end, the said movable member including a tongue fulcruming in the apertured end of the fixed member and an inturned lower end to engage the outer surface of the bucket below the rim or rim bead thereof.

6. As an article of manufacture, a mop Wringer including a frusto-conical drain cup, perforated both at the bottom and at the side Wall thereof and having a rim section above the perforations of the side walls, said rim section having fulcrum means `provided on one of the sides thereof, and a horizontal cross-bar tangential to the opposite end of the fulcrum means, and rigid with the drain cup for resting upon the rim of a pail, bucket or the like, to support the drain cup for use.

7. The combination set forth in claim 6 in which the drain cup has a hook contiguous to the fulcruming means to straddle the rim of the supporting pail or bucket.

8. A mop wringer comprising a drain cup having a. bottom of substantial areal and a rim portion and perforated both at the bottom and the side thereof, a clamp structure associated with said cup for attaching the same to the side wall of a pail or bucket, fulcrum means in said rim portion substantially directly above the area of contact of the cup and the pail or bucket, and a cross bar secured tangentially to said cup at Vthe side directly opposite said fulcrurn means for resting upon the rim of the pail or bucket.

9. A wringer comprising a drain cup, a rim on said cup and fulcrum means in said rim, in combination with a presser member adapted to have a mop mechanically attached thereto, a hook on one end of said presser member to engage said fulcrum means to effectively bring pressure to bear onto said mop when said presser member is forced downward.

10. A mop wringer comprising a perforated drain cup having a fulcruming aperture near its peripherial margin in combination with a mop presser adapted to fulcrum in said aperture when said presser is moved downward to squeeze water from said mop.

l1. A mop wringer comprising a perforated cup, having in one of its sides fulcruming apertures at different elevations; a

'horizontal bar secured to the side of said cup opposite said apertures and adapted to rest on the rim of a bucket; a clamp in fixed relation to said cup and arranged to be detachably secured to the rim of a bucket; a presser member ;y hooks on said presser member, said hooks being adapted to fulcrum in said apertures to effectively remove water from a mop headwhen said presser is forced downwardly.

l2. A mop wringing attachment for pails, buckets, and the like, comprising a perforated drain cup having a flared ovoidal rim section; means for mounting the cup on a pail; said drain cup having in said rim section, a relatively deep cut away portion; and having fulcrum means at its side opposite said cut away portion.

In testimony whereof, I have hereunto set my hand at Los Angeles, California, this 9th day of December, 1929.

LEO FREEDMAN, Assignee of Solomon Schub/mm, Deceased. 

